Safety sign



FIG. 1 is a perspective view of the safety sign according to the present invention;

FIG. 2 is a front elevatinal view of the safety sign of FIG. 1 the rear elevation being a mirror image;

FIG. 3 is a side elevation view of the safety sign of FIG. 1 the opposite side being a mirror image; and,

FIG. 4 is a top plan view of the safety sign of FIG. 1. 

The ornamental design for a safety sign, as shown and described. 